Products.Zope_Hotfix_20110622 1.0

This is a critical security hotfix which should be applied to the following versions of Zope:

• Zope 2.13 <= 2.13.7 (Plone 4.1 <= 4.1rc3)

• Zope 2.12 <= 2.12.18 (Plone 4.0 <= 4.0.7)

• Any version of Zope 2.10 or Zope 2.11 where PloneHotfix20110720 is installed (Plone 3.0, 3.1, 3.2 and 3.3 <= 3.3.5).

Additional information about the hotfix including frequently asked questions is available at http://plone.org/products/plone/security/advisories/20110622

This hotfix applies the following modifications to improve Zope security:

• Disables the acquire, attribute, item, lang and vh traversers.

• Patches the traverse method of zope.traversing.namespaces.resource.